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UL Standard 1600°C Three Zone Split Tube Furnace with Flange & 80 mm Dia. Alumina Tube - OTF-1600X-III-UL

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Item Number: OTF-1600X-III-UL


Upgrade to Eurotherm Temp Programmer (three zone) Upgrade + 15" Laptop + Accessories Kit
OTF-1600X-III- is a split-able three-zone tube furnace with Kanthal 1650°C grade SiC heating element,  82mm OD Alumina tube and vacuum-sealed  flange. Three 30 segments temperature controllers are installed with S type thermal couples. Microprocessor-based self-tuning PID provides excellent control with no overshooting and  +/- 1°C accuracy.   It is an excellent furnace for exchanging processing tube for multi-purpose up to 1600°C.

Power Input 9.0 K W
Working Voltage  AC220V Single phase 50/60Hz ( 60 A breaker required)
Max. Working Temperature 1600°C  ≤1 hours
Continuously Working Temperature 1500°C
Recommend Heating rate 5°C/min.
Processing Tube

 Alumina Tube Size: 82 O.D x 73 I.D x 1000mm L 
 click picture to order spare      click here to choose a crucible

Heat Zone Length
  • Three heating zones:  200 mm / each  ( included 20 mm spacing )
  • Total zone length :  600 mm  
  • Constant Temperature Zone length:   350mm  ( if set 3 zone at same temperature ) +/- 2ºC.
  • Accept processing tube up to 100 mm diameter
Temp. Profile at 1450ºC      (click to enlarge)
Overall Dimensions 860 mmL × 380 mmW × 680 mmH
Temperature Controller

Temperature controller interface

Optional PC control module

Optional Eurotherm 3204 
Standard temperature controller:
  • Proportional–integral–derivative control (PID control) and auto-tune function
  • 30 segments programmed with ramping, cooling and dwelling steps
  • Built-in over-temperature alarm and thermocouple failure alarm
  • Three S type thermcouples.
  • +/- 1 ºC temperature control accuracy
  • Default DB9 PC communication port (PC control module and software are sold separately. See optional.
  • MTS-02 PC control module (also including cable and software) is an add-on option for PC control.
    • It is recommended to purchase the module together with the furnace. We install and test it before shipping. 
    • It is recommended to purchase the laptop (with software pre-installed) from us to avoid software confliction.
    • Please note the module is not sold solely in the future.
  • Eurotherm 3204 Temperature Controller is optional. This package includes the communication cable (RS485 - USB) and software CD. Click here to view the full spec.

    Thermal Block Placement
    • Two thermal blacks are included . Please picture below tolearn how to place them inside tube
    • You may order flange support to avoid tube rotating ( click Pic below right )
    Vacuum Level
    • 10E-2 torr by quality mechanical vacuum pump
    • 10-5 torr by molecular pump
    Heating Elements & Thermal couples
    • 24 pcs  Kanthal 1650ºC grade Silicon carbide rod  ( 12 Dia. x 150 heating  x  374 lengths,(mm) )
    • 3 pcs S type thermal couple built in
    • Please click picture below  to order spare heating element
    • Notice: Customer will install SiC rod on site by themselves as instruction manual due to they are easy to damage during shipping.
    Net Weight 110 Kg
    Operation Instructions

    • The tube furnaces with alumina tube are designed for using under vacuum and low pressure < 0.02 Mpa / 0.2 Bar/ 3 PSI 
    • Never use graphite crucible in alumina tube.
    • Attention: A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.
    • The flow rate for gases should be limited to < 200 SCCM ( or 200ml/min )
    • Vacuum limit definition for all alumina tube furnaces: * Vacuum pressures may only be safely used up to 1500°C

    • One year limited warranty with lifetime support (consumable parts such as processing tubes, and O-rings are not covered by the warranty, please order replacements at related products below.).  
    • ATTENTION: Any damages caused by the use of corrosive and acidic gases are not under the coverage of MTI One Year Limited Warranty.
    • CE Certified
    • All electric components ( >24V) are UL / MET / CSA certified
    • The furnace is ready to  pass TUV(UL61010) or CSA certification at extra cost.( please click marks below to learn details )

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    1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
    2. We may add extra charges for paper order and net30 terms due to extra labor cost.
    3. The prices listed are subject to change without notice.